1/*
2 * Copyright (c) 2010, 2011, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/*
25 * @test
26 * @bug 6911256 6964740 6965277 7013420
27 * @author Maurizio Cimadamore
28 * @summary Check that lowered try-with-resources block does not end up creating resource twice
29 */
30
31import java.util.ArrayList;
32
33public class DuplicateResource {
34
35    static class TestResource implements AutoCloseable {
36        TestResource() {
37            resources.add(this);
38        }
39        boolean isClosed = false;
40        public void close() throws Exception {
41            isClosed = true;
42        }
43    }
44
45    static ArrayList<TestResource> resources = new ArrayList<TestResource>();
46
47    public static void main(String[] args) {
48        try(TestResource tr = new TestResource()) {
49           //do something
50        } catch (Exception e) {
51            throw new AssertionError("Shouldn't reach here", e);
52        }
53        check();
54    }
55
56    public static void check() {
57       if (resources.size() != 1) {
58           throw new AssertionError("Expected one resource, found: " + resources.size());
59       }
60       TestResource resource = resources.get(0);
61       if (!resource.isClosed) {
62           throw new AssertionError("Resource used in try-with-resources block has not been automatically closed");
63       }
64    }
65}
66